Part Number: 5S2141. The ECM calculates proper ignition spark timing based in part on the Ignition Knock (Detonation) Sensor's signal. A malfunctioning or inoperative Ignition Knock (Detonation) Sensor can allow engine knock or "ping" to occur for which the ECM would otherwise adjust ignition timing to eliminate.

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From United StatesBrand: AirtexWarranty: 90 DayCustoms services and international tracking provided